The steam engine familiarly explained and illustrated; with an historical sketch of its invention and progressive improvement; its applications to navigation and railways; with plain maxims for railway speculators. By the Rev. Dionysius Lardner ... With additions and notes by James Renwick ...

CONT'ENTS. 1 5
CHAPTER IX.
DOUBLE-CYLINDER ENGINES.
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Hornblower's Engine.-Woolf's Engine.-Cartwright's Engine......... 34
CHAPTER X.
LOCOMOTIVE ENGINES ON RAILWAYS.
High-pressure Engines.-Leupold's Engine.-Trevithick and Vivian.Effects of Improvement in Locomotion.-Historical Account of the
Locomotive Engine.-iBlenkinsop's Patent. —Chapman's Improvement.
-WalkingEngine.-Stephenson's first Engines.-His Improvements. —
Liverpool and Manchester Railway Company. —Their preliminary Proceedings.-The great Competition of 1829.-The Rocket.-The Sanspareil.-The Novelty.-Qualities of the Rocket.-Successive Improvements. - Experiments. - Defects of the present Engines. - Inclined
Planes.-Methods of surmounting them.-Circumstances of the Manchester Railway Company.-Probable Improvements in Locomotives.Their Capabilities with respect to Speed.-Probable Effects of the projected Rail-roads.-Steam Power compared with Horse Power.-Railroads compared with Canals...................................... 145
CHAPTER XI.
LOCOMOTIVE ENGINES ON TURNPIKE ROADS.
Railway and Turnpike Roads compared.-Mr. Gurney's Inventions.-His
Locomotive Steam Engine.-Its Performances.-Prejudices and Errors.
— Committee of the House of Commons.-Convenience and Safety of
Steam Carriages.-Hancock's Steam Carriage.-Mr. N. Ogle.-Trevithick's Invention.-Proceedings against Steam Carriages.-Turnpike
Bills.-Steam Carriage between Gloucester and Cheltenham. —Its discontinuance.-Report of the Committee of the Commons.-Present
State and Prospects of Steam Carriages............................ 213
CHAPTER XII.
STEAM NAVIGATION.
Propulsion by Paddle Wheels.-Manner of driving them.-Marine Engine.
-Its Form and Arrangement.-Proportion of its Cylinder.-Injury to
Boilers by Deposites and Incrustation.-Not effectually removed by
blowing out.-Mr. Samuel Hall's Condenser.-Its Advantages.-Origi